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Windows 7: Can't connect to internet using wired connection

I recently upgraded to Windows 7 and it's been working fine for a few days, but since yesterday I can only use the internet when i connect using wireless. My other PC and xbox are not having any trouble (they are wired). The network is showing as unidentified and when I diagnose I get the message "Local Area Connection doesn't have valid IP configuration".

Desktop won't connect to Internet through Wired ConnectionI have been unable to connect to the wired ethernet in my house. Attached is a screen shot of my ipconfig /all. Wireless works fine, and I know I dont have a default gateway for my wired. How do I fix this, this is driving me crazy? Windows Firewall is on, and Im pretty sure that it is the only one.

Cannot connect to the internet though a wired connectionI connected my computer to my router though an Ethernet cable. But my computer did not "see" the network. I dropped a wireless adapter into the computer and it picked up the network just fine.
I just built this computer, and installed windows 7 home premium 64bit. Normally I would just use a...

Network & Sharing

Can't connect to the internet or my wired RouterJust did a clean windows 7 x64 installation on a build a box computer with a new hard drive. Install went fine. Plugged it in to my 3 month old Linksys Wireless G Broadband Router (WRT54GL) and it doesn't recognize that there is any connection at all. Windows says "No connections are available" and...

Network & Sharing

Can't connect to the internet wired, only wirelessMy comcast cable modem went kaput a few days ago. I bought a new motorola surf modem. I just purchased a new d-link dir 825 modem today as I thought my other router went bad too. I am able to access the internet on the wireless portion but cannot connect wired. The router is connected to a 24 port...